ash: Add checks for supervised users.

components/user_manager/user.cc

Index: components/user_manager/user.cc
diff --git a/components/user_manager/user.cc b/components/user_manager/user.cc
index 575d07f589c7f4e84742d3660e3c3c58914f4117..b57d1d0db7d8a1106b9c324b28cf13c09fbe458d 100644
--- a/components/user_manager/user.cc
+++ b/components/user_manager/user.cc
@@ -28,6 +28,14 @@ std::string GetUserName(const std::string& email) {
 
 }  // namespace
 
+bool User::IsSupervised() const {
+  return false;
+}
+
+void User::SetIsSupervised(bool is_supervised) {
+  VLOG(1) << "Ignoring SetIsSupervised call with param " << is_supervised;
+}
+
 class RegularUser : public User {
  public:
   explicit RegularUser(const std::string& email);
@@ -36,8 +44,17 @@ class RegularUser : public User {
   // Overridden from User:
   virtual UserType GetType() const OVERRIDE;
   virtual bool CanSyncImage() const OVERRIDE;
+  virtual void SetIsSupervised(bool is_supervised) OVERRIDE {
+    VLOG(1) << "Setting user is supervised to " << is_supervised;
+    is_supervised_ = is_supervised;
+  }
+  virtual bool IsSupervised() const OVERRIDE {
+    return is_supervised_;
+  }
 
  private:
+  bool is_supervised_;
+
   DISALLOW_COPY_AND_ASSIGN(RegularUser);
 };
 
@@ -72,6 +89,7 @@ class SupervisedUser : public User {
 
   // Overridden from User:
   virtual UserType GetType() const OVERRIDE;
+  virtual bool IsSupervised() const OVERRIDE;
   virtual std::string display_email() const OVERRIDE;
 
  private:
@@ -224,7 +242,8 @@ void User::SetStubImage(const UserImage& stub_user_image,
   image_is_loading_ = is_loading;
 }
 
-RegularUser::RegularUser(const std::string& email) : User(email) {
+RegularUser::RegularUser(const std::string& email)
+    : User(email), is_supervised_(false) {
   set_can_lock(true);
   set_display_email(email);
 }
@@ -278,6 +297,10 @@ std::string SupervisedUser::display_email() const {
   return base::UTF16ToUTF8(display_name());
 }
 
+bool SupervisedUser::IsSupervised() const {
+  return true;
+}
+
 RetailModeUser::RetailModeUser() : User(chromeos::login::kRetailModeUserName) {
   set_display_email(std::string());
 }